Regarding the NVH Behaviour of the more Electric Vehicles. Study Case of a Small PM Motor
Journal Title: Analele Universitatii "Eftimie Murgu" Resita. Fascicula de Inginerie - Year 2014, Vol 21, Issue 2
Abstract
The noise and vibration behaviour of electric and hybrid vehicles is dramatically different from conventional vehicles. The noise and vibration mechanisms of the individual components (combustion engine, electric motor, transmission etc.) are known in principle, but an electric or hybrid powertrain features additional and different components as well as new operation modes compared to a conventional powertrain. This results in new interactions which are uncommon in this form for conventional vehicles. In the case of the electric traction, the electric motor becomes an important noise and vibrations source. Depending on the design of the motor, the electromagnetic (EM) pulses and corresponding torque pulses from the motor can be very strong. These can be radiated as noise directly from the motor housing and can also be transmitted structurally to the support structure through the motor mounts. However, the EM forces are generally lower than the combustion and reciprocating mass forces of an IC engine, and significantly, they are at a much higher frequency. On the other side, the electric drives are quite numerous in cars. Lot of smaller motors are involved in X-by-wire systems or other comfort oriented systems. As a study case, the paper is focused on the NVH produced by a 0.25kW PM motor.
Authors and Affiliations
Florin Lazăr, Dorin Lucache, Alecsandru Simion, Paul Borza, Leonard Livadaru
Keywords
Related Articles
- EP ID EP460926
- DOI -
- Views 94
- Downloads 0
Calculation of Control Circuits in Frequency Domain using Scilab Environment
The paper presents the computing of control circuits in the frequency domain, starting from the mathematical model of the frequency response H(j) obtained from the transfer function H(s) where the operational variable k...
Regarding the NVH Behaviour of the more Electric Vehicles. Study Case of a Small PM Motor
The noise and vibration behaviour of electric and hybrid vehicles is dramatically different from conventional vehicles. The noise and vibration mechanisms of the individual components (combustion engine, electric motor,...
Study of the Magnetic Field of a Permanent Magnet Synchronous Generator by using the Finite Element Method
The study shows the numerical simulation of the magnetic field for a permanent magnet synchronous generator prototype. Through the study, the OPERA software environment, a program based on the numerical computation using...
Considerations Regarding the Opportunity of Using Psychological Techniques to Stimulate Solutions Characterized by Novelty and Inventive Step in TISR Transformers and Electric Motors with Shorted Moving Coil
This paper presents the appreciations and contributions regarding the use of psychological techniques to stimulate technical creativity with special reference to consonant association technique and inversion technique. T...
X-Y Pen Plotter Design Accomplished from Older Drives
The paper describes the design and the implementation of a small, easily operable and flexible 2-axis CNC pen plotter (Computer Numerical Control). It is accomplished from two old and available CD-ROM (Compact Disc Read-...